Sound box



April 1 1924. 1,488,956

., w. TURES SOUND B0X Fiied June 2o .'1919 @A Y si lrntented ipn l,

lullin in@ il nl @EUR T0 THE ORO-TONE CO., 0F CHICAGO,

sourire '1 on.

Application filed June 29,19%. Serial No. 305,61e.

To all whom may concern.'

Be it known that l? Vi/Enigmi@ Tonus, ai citizen of the "United States, residing et ,#Lillieego7 in the county of Cool; and Stute oii illinois, have invented certain new and useiul improvements in Sound Bones, of which the following is e speciiicution.

My invention relates in general to telliing machines und incre particularly to an improved sound bon.

in order that e sound box muy be used both with hill und dele und Zigzeg records, it is necessary that it should he sdjustebly mount-ed upon tone erin so that the plone of the diaphragm muy be tangent to the grooves oi :i zigzag record und et right :ingles to the grooves 'oi e hill und dele record. @it is desirable that the point of the stylus should be the sume dist-ence roin the verticel airis oi oscillation of the tone in both positions oi' the sound box, i. e, for Zigzeg und hill und dele records.

l accomplish the above desired object inmy improved sound box by mounting the stylus erin on the suine side olf the sound bei; us the connection with the tone erin so that the stylus muy project in substantiel alignment with the airis of oscillation of the sound box upon the tone erin.

A further object o my invention is to provide e sound box in which the stylus erm cen be located upon the saune exterior side oi the casing es the tone erin connection without unduly diminishing the delivery of sound waves to the tone zirni.

i still further object oi iny invention is to provide e sound boi; which lwill be coin- .perntively sinipie in construction, inexpensive in manufacture, and elilcient in use.

lily invention will be more `fully described herein with reference to the accompanying drawing, in which the saine is illustrated es embodied in u convenient and practical Jiorni, und in whichlFigure l is e front elevational view, the sound bou being in position to play zigzeg record; j

igure 2 is a view similar to Figure l, looking from the rear of the sound box;

Figure 3 is i sectional View on the line 3-3 of Figure 2;

Figuie i is en enlarged detail section through one side of the sound box, es, for instance, on line 4eme oi Figure l; and,

lil indicates e retaining ring of channel cross section which receives within its cheni nel the edge of the cylindrical flange a. The portion of the ring E within the cylin dries-l flange o overlies the periphery of the diephrugin und beurs upon the adjacent gasket. il pluislity of spaced screws e eX- tend through the ring E into engagement with screw-threaded openings in the flange ci so that by the adjustment oi' the screws the rinoj may be adjusted with respect to the llzinge a andthe .pressure imposed upon vthe gaskets varied so as to compense/te for deterioration in the resiliency of the gnsiiets.

G indicates the stylus erin whichis secured to the diephtegin B et the center thereof., The stylus erin projects away from the sound bon casing et its lower end, where it is iiidly connected with e. stylus bei' H pivotully supported between lugs H1 und H2 projecting troni the casing oi the sound box. h1 und h2 indicate adjustable pointed screws which extend through the eers H1 und H2 into engagement with recesses in the ends of the stylus bei1 so es to permit the lutter to :reely oscille-tte.

l. indicates the usuel stylus which is removebly secured in the lower end or the stylus her by n set screw lc.

M indicates en Lehaped tubular sound conduit extending from the circular rea-r well al oi the sound box casing Ifind coniniuniceting therethrough with the space et the reel of the diaphragm. The upper end of the conduit lid is rotatably mounted within the end of the tone erm N so that the sound boi; muy be turned substantially 90 relative to the tone erin, thereby properly positioning the sound box for either hill and dale or zigzag records.

te the seine pants in the several The end of the stylus arm, which is connected With the diaphragm, eXtends through the tubular coupling M and through the reg istering opening in the sound box casing, through which the latter communicates With the space at the back of the diaphragm. Si housing O is provided on the rear wall el of the sound box casing to enclose the stylus arm G, and Within such housing is suitable packing P closely surrounding the stylus arm so as to minimize the escape of sound Waves from the sound boy around the stylus arm.

It Vwill be obserf'ed that by locating the stylus arni on the same side of the sound box casing as the conduit leading to the tone arm, the stylus may be locate in substantial alignment with the axis of oscillation of the sound bei; upon the tone arm whereby the distance of the stylus from the vertical axis oit oscillation of the tone ar; is substanti ally the saine when the sound box is in both positions, i. e., "for hill and dale and zigzag records.

It Will be further observed that by my invention the diaphragm may at all times be tightly supported at its periphery Within. the sound box, inasmuch as compensation may be readily made for any loss of resiliency, or any looseness which might occur in any other Way, in the gaskets between Which the periphery of the dia phragin is supported.

vWhile l have described more or cisely the details of construction, Wish to be understood as limiting n'iysel't thereto, as l contemplate changes in torni and the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient Without departing from the spirit oi my invention.

I claim:

l. In av sound box for talking machines, the combination with a diaphragm, of a casing Within Which said diaphragm is mountificaoe -a stylus arm. connected with the diaphragm and mounted upon the exterior of the same side of the casing with the seid coupling the airis of the needl is coincidre in the sty ing with the airis of oscillation ilie sound boi; about its coupling.

2. ln a sound box ior talking the combination with a diapers ing Within which said die* ed, acoupling on said cas the saine with the connected with the ed upon the 'or o casing that on an is located and passing 't and housing on the ci stylus arm from its point or pa the coupling-- 3. ln a sound boi: for ta the combination with a diaphi'z ing Within which said diaph ed, an elbow coupling o connecting the saine with a stylus arr; moin the casing and project ing of said coupling intothe diaphragm, the parte be machines, of a casi is mounta ius arm and mountagement with arranged in such manner that ie needle lies in the axis 7U el. ln a sound box `tor "ng machines, the combination with. diaphragm, of casing Within Which said diaphragm is mor-,nt-

the stylus arm, and a lining Within said housing closely surrounding the stylus arm. Signed at Chicago, illinois, this 7th day of June, 1919.

lllLLlAl/, TUBES. 

